Skip to content

Latest commit

 

History

History
48 lines (37 loc) · 2.08 KB

preflight.md

File metadata and controls

48 lines (37 loc) · 2.08 KB

StratoLogger SL100 PreFlight Checklist

This checklist is meant specifically and exclusively for UND-ARC's November launch of the Stripe rocket using a dual-SL100 altimeter configuration.

Altimeter Bay Construction

  • Connect battery ground wire to SL100.
  • Connect switch and power wire to SL100.
  • Run the pre-construction voltage test checklist.
  • Connect main chute fire command wire to SL100.
  • Connect drogue chute fire command wire to SL100.
  • Connect battery power wire to SL100.
  • Mount altimeter board in altimeter bay.

Pre-construction Voltage Test

  • Connect battery power wire to the SL100.
  • Establish connection from PC to SL100 using the DT4U and pigtail cable.
  • Launch the DataCap software.
  • Launch the voltage test interface (Altimeter -> Test).
  • Ensure no loose connections cause a voltage drop.
  • Ensure stable voltage in acceptable range of 6V to 16V.
  • Disconnect battery power wire from the SL100.

Powerup Sequence

  • Switch altimeter on.
  • Listen for beep codes and expected value:
Order Digits Meaning Expected value #1 Expected value #2
1. 1 Selected preset 4 4
2. [3,4] Main deploy altitude 1000 950
2A. Cont. tone Apogee delay != 0 No tone sounds Tone sounds
3. [3,6] Ap. alt last flight 4078 4080
4. [2,3] Battery voltage level In range [6,16] In range [6,16]
  • Ensure altimeter is outputting continuity status (3 beeps every 0.8sec)

Diagnostics

Beeps/0.8sec Meaning
None No continuity on any ematchs
1 Drogue chute ematch continuity good
2 Main chute ematch continuity good
3 Both ematch continuity good